4031230545 has 64 divisors (see below), whose sum is σ = 7502561280. Its totient is φ = 2051179200.

The previous prime is 4031230531. The next prime is 4031230547. The reversal of 4031230545 is 5450321304.

4031230545 is a `hidden beast` number, since 4 + 0 + 312 + 305 + 45 = 666.

It is not a de Polignac number, because 4031230545 - 2⁶ = 4031230481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4031230547) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 290352 + ... + 303918.

It is an arithmetic number, because the mean of its divisors is an integer number (117227520).

Almost surely, 2^4031230545 is an apocalyptic number.

4031230545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4031230545 is a deficient number, since it is larger than the sum of its proper divisors (3471330735).

4031230545 is a wasteful number, since it uses less digits than its factorization.

4031230545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13683 (or 13677 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 4031230545 is about 63491.9722878412. The cubic root of 4031230545 is about 1591.5216298435.

Adding to 4031230545 its reverse (5450321304), we get a palindrome (9481551849).

The spelling of 4031230545 in words is "four billion, thirty-one million, two hundred thirty thousand, five hundred forty-five".